Day: September 15, 2020

7169-34-8, Benzofuran-3(2H)-one is a benzofuran compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

General procedure: To a solution of benzofuran-3(2H)-one (1.0 mmol) and benzaldehyde(1.0 mmol) in dichloromethane (6 mL) was added aluminum oxide (30.0 mmol) at room temperature. After stirring for 6 h, the reaction mixture was filtered off. The filtrate was concentrated under vacuum and the residue was purified by flash chromatography on silica gel to give the desired compound

7169-34-8, 7169-34-8 Benzofuran-3(2H)-one 23556, abenzofuran compound, is more and more widely used in various fields.

Reference£º
Article; Wang, Sheng; Xu, Lei; Lu, Yu-Ting; Liu, Yu-Fei; Han, Bing; Liu, Ting; Tang, Jie; Li, Jia; Wu, Jiangping; Li, Jing-Ya; Yu, Li-Fang; Yang, Fan; European Journal of Medicinal Chemistry; vol. 130; (2017); p. 195 – 208;,
Benzofuran – Wikipedia
Benzofuran | C8H6O – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.641-70-3,3-Nitrophthalic anhydride,as a common compound, the synthetic route is as follows.,641-70-3

To 580 ml of ammonia (cone, aqueous solution) 400 g (2.07 mol) of 2 were added. The temperature rose to 600C and the mixture was stirred for 1 h. After addition of 200 ml of ethanol the mixture was cooled to 5C. The resulting solid was isolated, washed with MTBE and dried in a vacuum oven at 400C. Yield: 81.6%.

The synthetic route of 641-70-3 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; ABBOTT GMBH & CO. KG; WO2007/6566; (2007); A1;,
Benzofuran – Wikipedia
Benzofuran | C8H6O – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.1914-60-9,2,3-Dihydrobenzofuran-2-carboxylic acid,as a common compound, the synthetic route is as follows.

General procedure: To a mixture of 7 (1 eq) and 1,1?-carbodiimidazole (1.2 eq) in anhydrous THF was stirred for 1h then substituted aniline (0.9 eq) was added at room temperature. After stirring for 14 h, solvent was evaporated then the mixture acidified with 6N HCl to pH 2. The mixture was extracted with EtOAc (3 ¡Á 20 mL). The combined extracts were dried over anhydrous Na2SO4and the solvent was evaporated. After evaporation, the residue was purified by column chromatography (EtOAc/hexane = 1:3 – 1:50)., 1914-60-9

As the paragraph descriping shows that 1914-60-9 is playing an increasingly important role.

Reference£º
Article; Choi, Minho; Jo, Hyeju; Park, Hyun-Jung; Sateesh Kumar, Arepalli; Lee, Joonkwang; Yun, Jieun; Kim, Youngsoo; Han, Sang-Bae; Jung, Jae-Kyung; Cho, Jungsook; Lee, Kiho; Kwak, Jae-Hwan; Lee, Heesoon; Bioorganic and Medicinal Chemistry Letters; vol. 25; 12; (2015); p. 2545 – 2549;,
Benzofuran – Wikipedia
Benzofuran | C8H6O – PubChem

6296-53-3,6296-53-3, N-(1,3-Dioxo-1,3-dihydroisobenzofuran-4-yl)acetamide is a benzofuran compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Example 1 Synthesis of 2-[1-(3-ethoxy-4-methoxyphenyl)-2-methylsulfonylethyl]-4-acetylaminoisoindoline-1,3-dione A stirred solution of 1-(3-ethoxy-4-methoxyphenyl)-methylsulfonylethylamine (1.0 g, 3.7 mmol) and 3-acetamidophthalic anhydride (751 mg, 3.66 mmol) in acetic acid (20 mL) was heated at reflux for 15 h. The solvent was removed in vacuo to yield an oil. Chromatography of the resulting oil yielded the product as a yellow solid (1.0 g, 59% yield): mp, 144 C.; 1H NMR (CDCl3) delta1.47 (t, J=7.0 Hz, 3H, CH3), 2.26 (s, 3H, CH3), 2.88 (s, 3H, CH3), 3.75 (dd, J=4.4, 14.3 Hz, 1H, CHH), 3.85 (s, 3H, CH3), 4.11 (q, J=7 Hz, 2H, CH2), 5.87 (dd, J=4.3, 10.5 Hz, 11-1, NCH), 6.82-6.86 (m, 1H, Ar), 7.09-7.11 (m, 2H, Ar), 7.47 (d, J=7 Hz, 1H, Ar), 7.64 (t, J=8 Hz, 1H, Ar), 8.74 (d, J=8 Hz, 1H, Ar), 9.49 (br s, 1H, NH); 13C NMR (CDCl3) delta14.61, 24.85, 41.54, 48.44, 54.34, 55.85, 64.43, 111.37, 112.34, 115.04, 118.11, 120.21, 124.85, 129.17, 130.96, 136.01, 137.52, 148.54, 149.65, 167.38, 169.09, 169.40; Anal Calc’d. for C22H24NO7S: C, 57.38; H, 5.25; N, 6.08. Found: C, 57.31; H, 5.34; N, 5.83.

The synthetic route of 6296-53-3 has been constantly updated, and we look forward to future research findings.

Reference£º
Patent; Celgene Corporation; Schafer, Peter H.; Gandhi, Anita; Capone, Lori; (50 pag.)US9272035; (2016); B2;,
Benzofuran – Wikipedia
Benzofuran | C8H6O – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.115010-11-2,2,3-Dihydro-1-benzofuran-5-sulfonoylchloride,as a common compound, the synthetic route is as follows.

Part B Preparation of carbamic acid, 2R-hydroxy-3-[[(2,3-dihydrobenzofuran-5-yl)sulfonyl](2-methylpropyl)amino]-1S-(phenylmethyl)propyl-, phenylmethyl ester To a solution of 1.11 g (3.0 mmol) of N-[3S-benzyloxy carbonylamino-2R-hydroxy-4-phenyl]-N-isobutylamine in 20 ML of anhydrous methylene chloride, was added 1.3 ML (0.94 g, 9.3 mmol) of triethylamine.. The solution was cooled to 0 C. and 0.66 g of 5-(2,3-dihydrobenzofuranyl) sulfonyl chloride was added, stirred for 15 minutes at 0 C., then for 2 hour at room temperature.. ethyl acetate was added, washed with 5% citric acid, saturated sodium bicarbonate, brine, dried and concentrated to yield 1.62 g of crude material.. This was recrystallized from diethyl ether to afford 1.17 g of pure carbamic acid, [2R-hydroxy-3-[[(2,3-dihydrobenzofuran-5-yl)sulfonyl](2-methylpropyl)amino]-1S-(phenylmethyl)propyl-, phenylmethyl ester., 115010-11-2

115010-11-2 2,3-Dihydro-1-benzofuran-5-sulfonoylchloride 2776154, abenzofuran compound, is more and more widely used in various fields.

Reference£º
Patent; G. D. Searle & Co.; US6388132; (2002); B1;,
Benzofuran – Wikipedia
Benzofuran | C8H6O – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.1914-60-9,2,3-Dihydrobenzofuran-2-carboxylic acid,as a common compound, the synthetic route is as follows.

A mixture of 5-bromopyridin-3-amine (300 mg, 1.73 mmol), 2,3- dihydrobenzofuran-2-carboxylic acid (426 mg, 2.60 mmol) and EDCI.HC1 (497 mg, 2.60 mmol) in pyridine (4 mL) was stirred at 50 C for 2 h. The reaction mixture turned into brown solution from yellow. The reaction mixture was concentrated and the residue was diluted with water (25 mL), and then extracted with EtOAc (25 mL x3). The combined organic layer was washed with brine (25 mL), dried over anhydrous Na2S04 and concentrated. The residue was purified by Combi Flash (20% to 50% EtOAc in pentane) to give N-(5-bromopyridin-3-yl)- 2,3-dihydrobenzofuran-2-carboxamide (500 mg, yield: 91%) as yellow gum. (1699) NMR (400 MHz, CDCb) d 3.49-3.57 (1H, m), 3.64-3.74 (1H, m), 5.28 (1H, dd, J= 10.8, (1700) 6.5 Hz), 6.94-7.01 (2H, m), 7.18-7.26 (2H, m), 8.39-8.49 (3H, m), 8.54 (1H, d, J= 2.3 Hz)., 1914-60-9

As the paragraph descriping shows that 1914-60-9 is playing an increasingly important role.

Reference£º
Patent; PETRA PHARMA CORPORATION; KESICKI, Edward A.; LINDSTROeM, Johan; PERSSON, Lars Boukharta; VIKLUND, Jenny; FORSBLOM, Rickard; GINMAN, Tobias; HICKEY, Eugene R.; DAHLGREN, Markus K.; GERASYUTO, Aleksey I.; (391 pag.)WO2019/126730; (2019); A1;,
Benzofuran – Wikipedia
Benzofuran | C8H6O – PubChem

1914-60-9, 2,3-Dihydrobenzofuran-2-carboxylic acid is a benzofuran compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

General procedure: To a mixture of 7 (1 eq) and 1,1?-carbodiimidazole (1.2 eq) in anhydrous THF was stirred for 1h then substituted aniline (0.9 eq) was added at room temperature. After stirring for 14 h, solvent was evaporated then the mixture acidified with 6N HCl to pH 2. The mixture was extracted with EtOAc (3 ¡Á 20 mL). The combined extracts were dried over anhydrous Na2SO4and the solvent was evaporated. After evaporation, the residue was purified by column chromatography (EtOAc/hexane = 1:3 – 1:50).

1914-60-9, 1914-60-9 2,3-Dihydrobenzofuran-2-carboxylic acid 2776555, abenzofuran compound, is more and more widely used in various fields.

Reference£º
Article; Choi, Minho; Jo, Hyeju; Park, Hyun-Jung; Sateesh Kumar, Arepalli; Lee, Joonkwang; Yun, Jieun; Kim, Youngsoo; Han, Sang-Bae; Jung, Jae-Kyung; Cho, Jungsook; Lee, Kiho; Kwak, Jae-Hwan; Lee, Heesoon; Bioorganic and Medicinal Chemistry Letters; vol. 25; 12; (2015); p. 2545 – 2549;,
Benzofuran – Wikipedia
Benzofuran | C8H6O – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.42933-43-7,2,3-Dihydrobenzofuran-5-amine,as a common compound, the synthetic route is as follows.

Ac2O (2 equiv) and pyridine (1 equiv) were added dropwise to a stirred solution of compound 7 or 8, respectively, (1 equiv) in dioxane (4 mL) at 0C and the solution was stirred at 20C for 16 h. The solution was diluted with water (50 mL) and extracted with ethyl acetate (350 mL). The organic layer was washed with brine, dried over MgSO4, and then evaporated to give 9 (99%) as a brown solid or 10 (86%) as a white solid

42933-43-7, 42933-43-7 2,3-Dihydrobenzofuran-5-amine 3841102, abenzofuran compound, is more and more widely used in various fields.

Reference£º
Article; Lee, Jeewoo; Tran, Phuong-Thao; Hoang, Van-Hai; Thorat, Shivaji A.; Kim, Sung Eun; Ann, Jihyae; Chang, Yu Jin; Nam, Dong Woo; Song, Hyundong; Mook-Jung, Inhee; Lee, Jiyoun; Bioorganic and Medicinal Chemistry; vol. 21; 13; (2013); p. 3821 – 3830;,
Benzofuran – Wikipedia
Benzofuran | C8H6O – PubChem

With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.174775-48-5,Ethyl 5-aminobenzofuran-2-carboxylate,as a common compound, the synthetic route is as follows.

To the solution of ethyl 5-aminobenzofuran-2-carboxylate (4) (1 mmol), bis-(2-chloro ethyl) amine (1.5 mmol), and sodium carbonate (2.0 mmol), in 1-propanol solvent. Reaction mass is heat to reflux for 24 h and filtered. Add mixture of water and MDC. Extract the compound with MDC twice. The combined organic layer was dried over Na2SO4 and then evaporated to dryness. Compound purified by column chromatography. 35% yield. Get the ethyl-5-(1-piperazinyl) benzofuran-2-carboxylate. White solid, 89% yield, mp 269.4-271.4 C, 1H NMR (300 MHz, CDCl3): delta = 7.68 (s, 1H), 7.36 (m, 1H), 6.84 (m, 2H), 4.35 (q, J = 7.5, 14.4 Hz, 2H), 3.89 (t, J = 4.4 Hz, 4H), 3.15 (t, J = 4.8 Hz, 4H), 1.33 (m, 3H) 6H); 13C NMR (75 MHz, DMSO+CDCl3): 157.3, 154.9, 142.5, 129.7, 120.8, 112.2, 110.4, 109.2, 107.2, 58.8, 59.2, 49.8, 48.2, 43.4, 13.2. MS calcd for C19H23N3O4: 357.4. Found: 358.6, (M+). Anal. Calcd for C19H23N3O4: C, 63.85; H, 6.49; N, 11.76. Found: C, 63.82; H, 6.48; N, 11.78., 174775-48-5

The synthetic route of 174775-48-5 has been constantly updated, and we look forward to future research findings.

Reference£º
Article; Renuka, Janupally; Reddy, Kummetha Indrasena; Srihari, Konduri; Jeankumar, Variam Ullas; Shravan, Morla; Sridevi, Jonnalagadda Padma; Yogeeswari, Perumal; Babu, Kondra Sudhakar; Sriram, Dharmarajan; Bioorganic and Medicinal Chemistry; vol. 22; 17; (2014); p. 4924 – 4934;,
Benzofuran – Wikipedia
Benzofuran | C8H6O – PubChem

230642-84-9, 4-Vinyl-2,3-dihydrobenzofuran is a benzofuran compound, ?involved in a variety of chemical synthesis. Rlated chemical reaction is continuously updated

Ozone was bubbled into a stirring cold solution of (3 g, 21 mmol, prepared as described in WO 9933460) in dichloromethane (50 mL). The reaction was monitored by TLC (20:1 hexane/ethyl acetate). Upon completion of the reaction the mixture was purged with nitrogen for a few minutes followed by the addition of Hunig’s base (N,N-ethyldiisopropylamine, 5.44 g, 42 mmol). Stirring was continued while the reaction warmed to RT. The reaction was washed with 0.5 N HCl, water, and then brine. The organic layer was dried over MgSO4; filtered and concentrated in vacuo. The title compound (oil, 2.10 g, 69% yield) was isolated via silica gel using 10% ethyl acetate in hexanes., 230642-84-9

As the paragraph descriping shows that 230642-84-9 is playing an increasingly important role.

Reference£º
Patent; Bristol-Myers Squibb Company; US6887870; (2005); B1;,
Benzofuran – Wikipedia
Benzofuran | C8H6O – PubChem